JAVA：角度前方交会算法GUI实现

编译环境：

操作系统：Win8.1  64位

IDE平台：Visual Studio 2013 Ultimate

一、原理与步骤

二、代码实现

角度前方交会.java

package text;import java.awt.*;import java.awt.event.*;import java.math.*;import javax.swing.*;import javax.swing.border.Border;public class 角度前方交会 extends JFrame{   public static final int TEXTAREA_ROWS = 20;   public static final int TEXTAREA_COLUMNS = 40;    public 角度前方交会()   {      final JTextField A_X = new JTextField("37477");      final JTextField A_Y = new JTextField("16307");      final JTextField B_X = new JTextField("37327");      final JTextField B_Y = new JTextField("16078");          final JTextField C_X = new JTextField("37163");      final JTextField C_Y = new JTextField("16046");      final JTextField α1 = new JTextField("40°41'");      final JTextField β1 = new JTextField("75°19'");      final JTextField α2 = new JTextField("58°11'");      final JTextField β2 = new JTextField("69°6'");      JPanel northPanel = new JPanel();      final JTextField DAP = new JTextField();      final JTextField DBP = new JTextField();      JPanel WestPanel = new JPanel();      JLabel pic= new JLabel();      pic.setIcon(new ImageIcon("G:/workplace/角度前方交会/1.png"));      WestPanel.add(pic);      getContentPane().add(WestPanel, BorderLayout.WEST);//角度前方交会      northPanel.setLayout(new GridLayout(2, 10));      northPanel.add(new JLabel("A_X: ", SwingConstants.CENTER));      northPanel.add(A_X);      northPanel.add(new JLabel("A_Y: ", SwingConstants.CENTER));      northPanel.add(A_Y);      northPanel.add(new JLabel("B_X: ", SwingConstants.CENTER));      northPanel.add(B_X);      northPanel.add(new JLabel("B_Y: ", SwingConstants.CENTER));      northPanel.add(B_Y);      northPanel.add(new JLabel("C_X: ", SwingConstants.CENTER));      northPanel.add(C_X);      northPanel.add(new JLabel("C_Y: ", SwingConstants.CENTER));      northPanel.add(C_Y);      northPanel.add(new JLabel("α1: ", SwingConstants.CENTER));      northPanel.add(α1);      northPanel.add(new JLabel("β1: ", SwingConstants.CENTER));      northPanel.add(β1);      northPanel.add(new JLabel("α2: ", SwingConstants.CENTER));      northPanel.add(α2);      northPanel.add(new JLabel("β2: ", SwingConstants.CENTER));      northPanel.add(β2);      Border etched = BorderFactory.createEtchedBorder();      Border titled = BorderFactory.createTitledBorder(etched, "角度前方交会");      northPanel.setBorder(titled);      getContentPane().add(northPanel, BorderLayout.NORTH);            final JTextArea textArea = new JTextArea(20,40);      JScrollPane scrollPane = new JScrollPane(textArea);      getContentPane().add(scrollPane, BorderLayout.CENTER);      // add button to append text into the text area      JPanel southPanel = new JPanel();      JButton insertButton = new JButton("计算P点坐标");      insertButton.addActionListener(new ActionListener()         {            public void actionPerformed(ActionEvent event)            {          //坐标初始化                Double X1=Double.valueOf(A_X.getText()).doubleValue();                Double Y1=Double.valueOf(A_Y.getText()).doubleValue();                Double X2=Double.valueOf(B_X.getText()).doubleValue();                Double Y2=Double.valueOf(B_Y.getText()).doubleValue();                Double X3=Double.valueOf(C_X.getText()).doubleValue();                Double Y3=Double.valueOf(C_Y.getText()).doubleValue();                                Double α_1=convert(α1.getText());                Double β_1=convert(β1.getText());                Double α_2=convert(α2.getText());                Double β_2=convert(β2.getText());                          //A、B、P                      Double D_AB=Math.sqrt( Math.pow((X1-X2),2)+Math.pow((Y1-Y2),2));                Double D_AP=D_AB*Math.sin(β_1)/Math.sin(α_1+β_1);                Double α_AB=90-Math.atan(Math.abs(Y2-Y1)/Math.abs(X2-X1));                Double α_AP=α_AB-α_1;                Double XP1=X1+D_AP*Math.cos(α_AP);                Double YP1=Y1+D_AP*Math.sin(α_AP);                          //B、C、P                Double D_BC=Math.sqrt( Math.pow((X3-X2),2)+Math.pow((Y3-Y2),2));                Double D_BP=D_BC*Math.sin(β_2)/Math.sin(α_2+β_2);                Double α_BC=Math.atan(Math.abs(Y2-Y3)/Math.abs(X2-X3));                Double α_BP=α_BC-α_2;                Double XP2=X2+D_BP*Math.cos(α_BP);                Double YP2=Y1+D_BP*Math.sin(α_BP);                                 textArea.append("=====角度前方交会===="+"\n"+"参考值1:"+ "( " +XP1+","+YP1+")"                        +  "\n"+"参考值2:"+"( " +XP2+","+YP2+")"                        +  "\n"+"误差距离约:"+Math.round(miss(XP1,YP1,XP2,YP2))+"米");                //textArea.append("测试："+β_2);            }            public double miss(double XP1,double YP1,double XP2,double YP2){                return Math.sqrt(Math.pow((XP1-XP2),2)+Math.pow((YP1-YP2),2));            }            public double convert(String input){                Double a=Double.valueOf(input.split("°")[0]).doubleValue();                Double b=Double.valueOf(input.split("°")[1].split("'")[0]).doubleValue();                return a+b/60;            }         });     add(insertButton, BorderLayout.SOUTH);      pack();   }}

Test.java

package text;import java.awt.*;import javax.swing.*;public class Test{   public static void main(String[] args)   {      EventQueue.invokeLater(new Runnable()         {            public void run()            {               JFrame frame = new 角度前方交会();               frame.setTitle("角度前方交会");               frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);               frame.setVisible(true);            }         });   }}

三、运行结果